[jira] [Resolved] (IMPALA-9383) HS2 HTTP server hangs on large chunked requests

["Thomas Tauber-Marshall (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/IMPALA-9383?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Thomas Tauber-Marshall resolved IMPALA-9383.
--------------------------------------------
    Fix Version/s: Impala 3.4.0
       Resolution: Fixed

> HS2 HTTP server hangs on large chunked requests
> -----------------------------------------------
>
>                 Key: IMPALA-9383
>                 URL: https://issues.apache.org/jira/browse/IMPALA-9383
>             Project: IMPALA
>          Issue Type: Bug
>            Reporter: Thomas Tauber-Marshall
>            Assignee: Thomas Tauber-Marshall
>            Priority: Critical
>             Fix For: Impala 3.4.0
>
>
> There's a bug in THttpTransport that causes it to hang when sent a large, chunked request.
> The issue is that in each call to THttpTransport::read(), it always starts by calling refill() which reads more data off the socket, but for chunked requests each call to read() only processes a single chunk. 
> So, if more than one chunk is read off the socket at a time, you can end up with more chunks still needing to be processed but no more data to read off the socket, and the next call to THttpTransport::read() will hang when it calls refill().



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